Details Smartwool Women's Merino 150 Bikini The Smartwool Women's Merino 150 Pattern Bikini. With soft flatlock seams, you'll stay comfortable in these pants no matter what you're doing. 87% merino wool with a nylon core to increase durability. Weight: 20g (Medium) Slim fit: Mid rise Flatlock seam construction designed to eliminate chafing Clean finish crotch panel Tagless for next-to-skin comfort Fabric:150g/m² 87% merino, 13% nylon core Specifications Merino 150 Pattern Bikini